Westfield, NJ 07090. United States. Westfield Senior High School (WHS, or Westfield High School) is a comprehensive public high school located in Westfield, in Union County, New Jersey, United States, serving students in ninth through twelfth grades as the lone secondary school of the Westfield Public Schools.
(3) Symmetry, in the general sense, means the invariance of the structure of a mathematical or physical object with respect to transformations of the object. For example, the symmetry of the laws of the theory of relativity is determined by their invariance with respect to the Lorentz transformations.
Line Symmetry. Basically, a line of symmetry is a line that divides a figure into two mirror images. The figure is mapped onto itself by a reflection in this line. A set of points has line symmetry if and only if there is a line, l, such that the reflection through l of each point in the set is also a point in the set.